Summary: The Belle Silicon Vertex Detector
Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
The silicon vertex detector of the Belle experiment was built primarily to provide
the vertex information of B meson decays at the KEKB accelerator. It consists of
three cylindrical layers of double sided, double metal silicon sensors read out by
VA1 chips. The analog signals are transmitted to a system of fast analog-to-digital
converters and are reduced on a system based on Motorola Digital Signal Processors.
Performance during the initial data taking periods and a brief description of the
upgrade plan are also presented.
Key words: Belle, KEKB, B-factory, Silicon vertex detector
The Silicon Vertex Detector (SVD) of the Belle experiment at the KEKB ac-
celerator was built to provide vertex information from precision measurements
of charged tracks in the vicinity of the interaction point. Because the KEKB
is an asymmetric e+
collider with 8 GeV e-
and 3.5 GeV e+